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https://github.com/opencv/opencv.git
synced 2025-01-19 23:19:23 +08:00
New functions with QT GUI (presented in the 4th report)
-Fullscreen -Change Autoresize dynamically (after windows are created) -Zoom on mouse location (with wheel) -Panning by click'ndrag posible after zooming
This commit is contained in:
Yannick Verdie
parent
673b4404a9
commit
f4dba4686d
@ -418,63 +418,64 @@ CV_IMPL void cvShowImage( const char* name, const CvArr* arr )
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//----------OBJECT----------------
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GuiReceiver::GuiReceiver() : _bTimeOut(false)
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{
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{
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icvInitSystem();
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qApp->setQuitOnLastWindowClosed ( false );//maybe the user would like to access this setting
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}
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double GuiReceiver::getPropWindow(QString name)
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{
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QPointer<CvWindow> w = icvFindWindowByName( name.toLatin1().data() );
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QPointer<CvWindow> w = icvFindWindowByName( name.toLatin1().data() );
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if (!w)
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return -1;
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return (double)w->flags;
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return -1;
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return (double)w->flags;
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}
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void GuiReceiver::setPropWindow(QString name, double arg2 )
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{
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QPointer<CvWindow> w = icvFindWindowByName( name.toLatin1().data() );
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QPointer<CvWindow> w = icvFindWindowByName( name.toLatin1().data() );
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if (!w)
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return;
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int flags = (int) arg2;
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if (w->flags == flags)//nothing to do
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return;
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switch(flags)
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{
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case CV_WINDOW_NORMAL:
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w->layout->setSizeConstraint(QLayout::SetMinAndMaxSize);
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w->flags = flags;
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break;
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case CV_WINDOW_AUTOSIZE:
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w->layout->setSizeConstraint(QLayout::SetFixedSize);
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w->flags = flags;
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break;
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default:;
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}
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return;
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int flags = (int) arg2;
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if (w->flags == flags)//nothing to do
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return;
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switch(flags)
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{
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case CV_WINDOW_NORMAL:
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w->layout->setSizeConstraint(QLayout::SetMinAndMaxSize);
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w->flags = flags;
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break;
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case CV_WINDOW_AUTOSIZE:
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w->layout->setSizeConstraint(QLayout::SetFixedSize);
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w->flags = flags;
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break;
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default:;
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}
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}
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double GuiReceiver::isFullScreen(QString name)
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{
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QPointer<CvWindow> w = icvFindWindowByName( name.toLatin1().data() );
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QPointer<CvWindow> w = icvFindWindowByName( name.toLatin1().data() );
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if (!w)
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return -1;
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if (w->isFullScreen())
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return CV_WINDOW_FULLSCREEN;
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else
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return CV_WINDOW_NORMAL;
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return -1;
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if (w->isFullScreen())
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return CV_WINDOW_FULLSCREEN;
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else
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return CV_WINDOW_NORMAL;
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}
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//accept CV_WINDOW_NORMAL or CV_WINDOW_FULLSCREEN
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@ -484,12 +485,12 @@ void GuiReceiver::toggleFullScreen(QString name, double flags )
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if (!w)
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return;
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if (w->isFullScreen() && flags == CV_WINDOW_NORMAL)
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w->showNormal();
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if (!w->isFullScreen() && flags == CV_WINDOW_FULLSCREEN)
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w->showFullScreen();
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if (w->isFullScreen() && flags == CV_WINDOW_NORMAL)
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w->showNormal();
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if (!w->isFullScreen() && flags == CV_WINDOW_FULLSCREEN)
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w->showFullScreen();
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}
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@ -643,14 +644,14 @@ CvTrackbar::CvTrackbar(CvWindow* arg, QString name, int* value, int count, CvTra
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//Change style of the Slider
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slider->setStyleSheet(str_Trackbar_css);
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//QFile qss(PATH_QSLIDERCSS);
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//if (qss.open(QFile::ReadOnly))
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//{
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// slider->setStyleSheet(QLatin1String(qss.readAll()));
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// qss.close();
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//}
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//this next line does not work if we change the style with a stylesheet, why ? (bug in QT ?)
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//slider->setTickPosition(QSlider::TicksBelow);
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@ -764,13 +765,6 @@ CvWindow::~CvWindow()
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}
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/*
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void CvWindow::startNavigate()
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{
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cout<<"here"<<endl;
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//myview->zoomIn();
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}*/
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void CvWindow::displayInfo(QString text,int delayms)
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{
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myview->startDisplayInfo(text, delayms);
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@ -783,7 +777,7 @@ void CvWindow::updateImage(void* arr)
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void CvWindow::setMouseCallBack(CvMouseCallback m, void* param)
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{
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myview->setMouseCallBack(m,param);
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myview->setMouseCallBack(m,param);
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}
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void CvWindow::addSlider(QString name, int* value, int count,CvTrackbarCallback on_change)
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@ -834,6 +828,7 @@ ViewPort::ViewPort(QWidget* arg, int arg2)
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previousFactor = 1;
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previousCenter = QPointF(0,0);
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previousDelta = QPointF(0,0);
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positionGrabbing = QPointF(0,0);
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if (mode == CV_MODE_OPENGL)
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{
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@ -845,6 +840,11 @@ ViewPort::ViewPort(QWidget* arg, int arg2)
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image2Draw=cvCreateImage(cvSize(centralWidget->width(),centralWidget->height()),IPL_DEPTH_8U,3);
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cvZero(image2Draw);
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setSceneRect(0,0,size().width(),size().height());
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this->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
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this->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
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this->setInteractive(false);
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}
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ViewPort::~ViewPort()
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@ -852,6 +852,7 @@ ViewPort::~ViewPort()
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if (image2Draw)
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cvReleaseImage(&image2Draw);
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delete timerDisplay;
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}
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void ViewPort::startDisplayInfo(QString text, int delayms)
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@ -888,7 +889,7 @@ void ViewPort::updateImage(void* arr)
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image2Draw=cvCreateImage(cvGetSize(tempImage),IPL_DEPTH_8U,3);
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updateGeometry();
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}
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}
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cvConvertImage(tempImage,image2Draw,CV_CVTIMG_SWAP_RB );
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viewport()->update();
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@ -896,16 +897,34 @@ void ViewPort::updateImage(void* arr)
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void ViewPort::setMouseCallBack(CvMouseCallback m, void* param)
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{
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setMouseTracking (true);//receive mouse event everytime
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setMouseTracking (true);//receive mouse event everytime
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on_mouse = m;
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on_mouse_param = param;
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}
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void ViewPort::controlImagePosition()
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{
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qreal left, top, right, bottom;
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matrixWorld.map(0,0,&left,&top);
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if (left < 0)left = 0;
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if (top < 0)top = 0;
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if (left>0 || top > 0)
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matrixWorld.translate(-left,-top);
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QSize sizeImage = size();
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matrixWorld.map(sizeImage.width(),sizeImage.height(),&right,&bottom);
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if (right > sizeImage.width()) right = sizeImage.width();
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if (bottom > sizeImage.height()) bottom = sizeImage.height();
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if (right < sizeImage.width() || bottom < sizeImage.height())
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matrixWorld.translate(sizeImage.width()-right,sizeImage.height()-bottom);
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}
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void ViewPort::scaleView(qreal factor,QPointF center)
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{
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factor += previousFactor;
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if (factor < 1 || factor > 100)
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return;
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{
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factor += previousFactor;
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if (factor < 1 || factor > 100)
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return;
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center= (center-previousCenter)/previousFactor + previousCenter;//move to global coordinate
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QPointF delta = QPointF(center-center*factor);
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@ -914,21 +933,23 @@ void ViewPort::scaleView(qreal factor,QPointF center)
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matrixWorld.translate(delta.x(),delta.y());//newCenter.x(),newCenter.y());
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matrixWorld.scale(factor,factor);
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//controlImagePosition();
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previousCenter = center;
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previousDelta = delta;
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//previousDelta = delta;
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previousFactor = factor;
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if (previousFactor>1)
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setCursor(Qt::OpenHandCursor);
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else
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unsetCursor();
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setCursor(Qt::OpenHandCursor);
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else
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unsetCursor();
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viewport()->update();
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}
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void ViewPort::wheelEvent(QWheelEvent *event)
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{
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scaleView( -event->delta() / 480.0,event->pos());
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scaleView( -event->delta() / 240.0,event->pos());
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}
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void ViewPort::mousePressEvent(QMouseEvent *event)
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@ -979,7 +1000,10 @@ void ViewPort::mousePressEvent(QMouseEvent *event)
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if (previousFactor>1)
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setCursor(Qt::ClosedHandCursor);
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{
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setCursor(Qt::ClosedHandCursor);
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positionGrabbing = event->pos();
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}
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QWidget::mousePressEvent(event);
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}
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@ -1032,7 +1056,7 @@ void ViewPort::mouseReleaseEvent(QMouseEvent *event)
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on_mouse( cv_event, pt.x(), pt.y(), flags, on_mouse_param );
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if (previousFactor>1)
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setCursor(Qt::OpenHandCursor);
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setCursor(Qt::OpenHandCursor);
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QWidget::mouseReleaseEvent(event);
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}
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@ -1115,6 +1139,17 @@ void ViewPort::mouseMoveEvent(QMouseEvent *event)
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if (on_mouse)
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on_mouse( cv_event, pt.x(), pt.y(), flags, on_mouse_param );
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if (previousFactor>1 && event->buttons() == Qt::LeftButton)
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{
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QPointF dxy = (pt - positionGrabbing)/previousFactor;
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positionGrabbing = event->pos();
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matrixWorld.translate(dxy.x(),dxy.y());
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controlImagePosition();
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}
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QWidget::mouseMoveEvent(event);
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}
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@ -1183,6 +1218,18 @@ void ViewPort::drawInstructions(QPainter *painter)
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}
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#if defined(OPENCV_GL)//all this section -> not tested
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void ViewPort::initGL()
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@ -1246,3 +1293,4 @@ void ViewPort::draw3D()
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#endif
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#endif
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@ -172,15 +172,16 @@ public:
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qreal scaleFactor;//for zoom int/out
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public slots:
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//reference:
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//http://www.qtcentre.org/wiki/index.php?title=QGraphicsView:_Smooth_Panning_and_Zooming
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//reference:
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//http://www.qtcentre.org/wiki/index.php?title=QGraphicsView:_Smooth_Panning_and_Zooming
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//http://doc.qt.nokia.com/4.6/gestures-imagegestures-imagewidget-cpp.html
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void scaleView(qreal scaleFactor, QPointF center);
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private:
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QPointF previousCenter ;
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QPointF previousCenter ;
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qreal previousFactor;//for zoom int/out
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QPointF previousDelta;
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QPointF positionGrabbing;
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CvMouseCallback on_mouse;
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void* on_mouse_param;
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@ -202,6 +203,8 @@ private:
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void mouseDoubleClickEvent(QMouseEvent *event);
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void drawInstructions(QPainter *painter);
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void draw2D(QPainter *painter);
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void controlImagePosition();
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#if defined(OPENCV_GL)
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void draw3D();
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